ON TIMEBOARD

AS 566 on time

Alaska Airlines 566: San Diego to Spokane at 8:59 p.m. (past 12 months)

On time
80%
289 flights · likely 75–84%
Cancelled
0.7%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+42 min
average delay
Similar flights
76%
AS, same route & hour

About 1 in 5 AS 566 flights from San Diego arrived 15+ minutes late, diverted or cancelled over the past year (20%); 0.7% were cancelled. The typical flight landed 11 minutes early.

AS 566: SAN → GEG

Scheduled to leave San Diego at 8:59 p.m. local time. Over the past year it arrived on time 80% of the time (289 flights), better than other AS flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Oct 2025: too few flights (6 flights)OctNov 2025: 86% on time (29 flights)86NovDec 2025: 68% on time (31 flights)68DecJan 2026: 88% on time (24 flights)88JanFeb 2026: 100% on time (25 flights)100FebMar 2026: 63% on time (27 flights)63MarApr 2026: 88% on time (24 flights)88AprMay 2026: 87% on time (31 flights)87MayJun 2026: 77% on time (30 flights)77JunJul 2026: 84% on time (31 flights)84JulAug 2026: 68% on time (31 flights)68Aug

By day of week

DayFlightsOn time
Monday4587%
Tuesday3485%
Wednesday3982%
Thursday4384%
Friday4473%
Saturday3987%
Sunday4564%

Why it was late

Late inbound plane 60%Airline (crew, maintenance, ops) 31%Air traffic & airport (NAS) 9%Severe weather 1%Security 1%

All flights SAN → GEG · Connecting off AS 566? Check the risk

Questions

How often is AS 566 from SAN to GEG late?

Alaska Airlines 566 from San Diego, CA to Spokane, WA arrived 15 or more minutes late, was diverted or was cancelled on 20% of 289 scheduled flights between September 2025 and August 2026. 0.7% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Alaska Airlines for today's flight. Method.